Ballast



FIG. 1 is a perspective view of a ballast, as viewed from below, showing my new design;

FIG. 2 is a perspective view of the ballast shown in FIG. 1, as viewed from above;

FIG. 3 is a left side view of the ballast shown in FIG. 1;

FIG. 4 is a right side view of the ballast shown in FIG. 1;

FIG. 5 is a front elevation view of the ballast shown in FIG. 1;

FIG. 6 is a rear elevation view of the ballast shown in FIG. 1;

FIG. 7 is a top plan view of the ballast shown in FIG. 1; and,

FIG. 8 is a bottom plan view of the ballast shown in FIG. 1.

The broken-line disclosure shown in the views is understood to represent portions of the article in which the claimed design is embodied, but which form no part of the claimed design. 

CLAIM The ornamental design for a ballast, as shown and described. 